Kyösti Mälkki (kyosti.malkki@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3474
-gerrit
commit d8a30436fdb180861303f27134457868187d7a68 Author: Kyösti Mälkki kyosti.malkki@gmail.com Date: Sat Jun 15 17:16:56 2013 +0300
Match device_t between romstage and ramstage
The aliased typedef of device_t causes problems when a function declaration is included for a source compilied without __PRE_RAM__ but the function definition is compiled with __PRE_RAM__.
For such cases use simple_device_t. Add a function to test if simple_device_t (from romstage) matches with a device_t (from ramstage) for PCI devices by comparing bus:dev.fn.
Change-Id: Ic6c3148ac62c7183246d83302ee504b17064c794 Signed-off-by: Kyösti Mälkki kyosti.malkki@gmail.com --- src/arch/x86/include/arch/io.h | 1 + src/device/pci_device.c | 13 +++++++++++++ src/include/device/device.h | 1 + src/include/device/pci.h | 1 + src/include/device/pci_def.h | 4 ++++ 5 files changed, 20 insertions(+)
diff --git a/src/arch/x86/include/arch/io.h b/src/arch/x86/include/arch/io.h index 29c8339..3450cb2 100644 --- a/src/arch/x86/include/arch/io.h +++ b/src/arch/x86/include/arch/io.h @@ -207,6 +207,7 @@ static inline int log2f(int value) #define PNP_DEV(PORT, FUNC) (((PORT) << 8) | (FUNC))
typedef unsigned device_t; /* pci and pci_mmio need to have different ways to have dev */ +typedef device_t simple_device_t;
/* FIXME: We need to make the coreboot to run at 64bit mode, So when read/write memory above 4G, * We don't need to set %fs, and %gs anymore diff --git a/src/device/pci_device.c b/src/device/pci_device.c index 4c5a814..8a7d080 100644 --- a/src/device/pci_device.c +++ b/src/device/pci_device.c @@ -1054,6 +1054,19 @@ device_t pci_probe_dev(device_t dev, struct bus *bus, unsigned devfn) }
/** + * Test for match between romstage and ramstage device instance. + * + * @param dev Pointer to the device structure. + * @param sdev Simple device model identifier, created with PCI_DEV(). + * @return Non-zero if bus:dev.fn of device matches. + */ +unsigned int pci_match_simple_dev(device_t dev, simple_device_t sdev) +{ + return dev->bus->secondary == PCI_DEV2SEGBUS(sdev) && + dev->path.pci.devfn == PCI_DEV2DEVFN(sdev); +} + +/** * Scan a PCI bus. * * Determine the existence of devices and bridges on a PCI bus. If there are diff --git a/src/include/device/device.h b/src/include/device/device.h index 9defb19..1a5cfed 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -10,6 +10,7 @@ struct device; #ifndef __PRE_RAM__ typedef struct device * device_t; +typedef unsigned int simple_device_t; struct pci_operations; struct pci_bus_operations; struct smbus_bus_operations; diff --git a/src/include/device/pci.h b/src/include/device/pci.h index 1f47daf..249c242 100644 --- a/src/include/device/pci.h +++ b/src/include/device/pci.h @@ -77,6 +77,7 @@ unsigned pci_find_capability(device_t dev, unsigned cap); struct resource *pci_get_resource(struct device *dev, unsigned long index); void pci_dev_set_subsystem(device_t dev, unsigned vendor, unsigned device); void pci_dev_init(struct device *dev); +unsigned int pci_match_simple_dev(device_t dev, simple_device_t sdev);
void pci_assign_irqs(unsigned bus, unsigned slot, const unsigned char pIntAtoD[4]); diff --git a/src/include/device/pci_def.h b/src/include/device/pci_def.h index 58a7321..c24c445 100644 --- a/src/include/device/pci_def.h +++ b/src/include/device/pci_def.h @@ -474,4 +474,8 @@ #define PCI_FUNC(devfn) ((devfn) & 0x07) #define PCI_BDF(bus,dev,func) ((bus) << 16 | (dev) << 11 | (func) << 8)
+/* Translation from PCI_DEV() to devicetree bus and path.pci.devfn. */ +#define PCI_DEV2DEVFN(sdev) ((sdev>>12)&0xff) +#define PCI_DEV2SEGBUS(sdev) ((sdev>>20)&0xfff) + #endif /* PCI_DEF_H */
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Kyösti Mälkki